Determining proximity of a mobile device to a subject based on shadow analysis
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United States of America Patent
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Mar 17, 2015
Grant Date -
Jan 30, 2014
app pub date -
Jun 18, 2013
filing date -
Jun 23, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
The present disclosure relates generally to cell phones and cameras, and to shadow analysis in imagery captured by such cell phones and cameras. One claim recites a method comprising: identifying a shadow cast by a cell phone on a subject being imaged by a camera included in the cell phone; and using a programmed electronic processor, determining proximity to the subject based on an analysis of the shadow. Another claim recites a mobile phone comprising: a camera for capturing images and video; memory; and one or more processors programmed for: identifying a shadow cast by a cell phone on a subject being imaged by said imager; and determining proximity to the subject based on an analysis of the shadow. Of course, other claims and combinations are provided too.
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